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80455998185472 = 21337131719127877
BaseRepresentation
bin10010010010110010011111…
…001100010010000000000000
3101112212111222211212221212010
4102102302133030102000000
541021142341013413342
6443040550400132520
722642516431544320
oct2222623714220000
9345774884787763
1080455998185472
11236aa219546068
129034ab3007140
1335b7c77b22140
1415c213bd43280
15947ca25a229c
hex492c9f312000

80455998185472 has 1792 divisors, whose sum is σ = 296946650972160. Its totient is φ = 18749495181312.

The previous prime is 80455998185461. The next prime is 80455998185527. The reversal of 80455998185472 is 27458189955408.

It is a tau number, because it is divible by the number of its divisors (1792).

It is a junction number, because it is equal to n+sod(n) for n = 80455998185394 and 80455998185403.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 91740020298 + ... + 91740021174.

It is an arithmetic number, because the mean of its divisors is an integer number (165706836480).

Almost surely, 280455998185472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80455998185472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148473325486080).

80455998185472 is an abundant number, since it is smaller than the sum of its proper divisors (216490652786688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80455998185472 is a wasteful number, since it uses less digits than its factorization.

80455998185472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1089 (or 1065 counting only the distinct ones).

The product of its (nonzero) digits is 1161216000, while the sum is 75.

The spelling of 80455998185472 in words is "eighty trillion, four hundred fifty-five billion, nine hundred ninety-eight million, one hundred eighty-five thousand, four hundred seventy-two".